The Washer,key, cataloged under National Stock Number 5310-00-498-3198, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-498-3198 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Straight Key Width | 0.480 INCHES MINIMUM AND 0.480 INCHES MINIMUM AND 0.486 INCHES MAXIMUM0.486 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 2.644 INCHES MINIMUM AND 2.644 INCHES MINIMUM AND 2.664 INCHES MAXIMUM2.664 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATEDAS FABRICATED |
| Style Designator | KEY |
| Outside Diameter | 7.350 INCHES MINIMUM AND 7.350 INCHES MINIMUM AND 7.410 INCHES MAXIMUM7.410 INCHES MAXIMUM IN |
| Material Thickness | 0.140 INCHES MINIMUM AND 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM0.150 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| Internal Key Quantity | 11 |
| Hole Diameter | 6.002 INCHES MINIMUM AND 6.002 INCHES MINIMUM AND 6.022 INCHES MAXIMUM6.022 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4G13784-101A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-498-3198 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-498-3198: Internal Straight Key Width: 0.480 INCHES MINIMUM AND 0.480 INCHES MINIMUM AND 0.486 INCHES MAXIMUM0.486 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 2.644 INCHES MINIMUM AND 2.644 INCHES MINIMUM AND 2.664 INCHES MAXIMUM2.664 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATEDAS FABRICATED; Style Designator: KEY. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.